Biofilter Structures

Biofilter Structures

Engineered structures for assured, continued performance


Biofilter shells can be supplied and installed as basic shells for your fit out, or as more complete constructions including media floors and spray pipework.


The Biofilter shell comprises base, wall and roof panels with internal roof supports and external bracing. Horizontal tie bars are not used within the structure.

  • Precision moulded 1000mm and 500mm panels in E-glass / isophthalic polyester with 135º cure
  • Creep resistant EPDM gasket and M12 bolts at 125mm centres
  • PVCU and pultruded isophthalic GRP roof support struts
  • Hot dip galvanised external bracing system
  • Spun galvanised fasteners (external) and A4 stainless (internal)


Fully detailed drawings in dwg format plus detailed calculations.

  • Panels provide FOS >6.0 against rupture to BSEN 13280:2001
  • Steelwork to BS5950-1:2000
  • Struts designed for an FOS >4.0 against buckling to BS4994:1987

Load Cases

The biofilter structure is designed for extreme practicable combinations of:

  • Process vacuum
  • Snow / access load
  • Wind load
  • Media weight and lateral thrust


600mm man access hatches, 100mm nozzle inspection hatches, side access hatches and larger media placement hatches: typically 2000x1000mm

Access Equipment

Galvanised steel access ladders and hand-railing to BS5395-3:1985. Handrail standards have side palm fixings to the Biofilter external bracing for maximum rigidity.


  • Secure BSP Tapped fittings for smaller piping connections
  • NP16 Flanges for larger piping fittings – drain and recirculation
  • Bespoke designed flanges for ducting to suit your requirements and the process pressure

Media Floor

Media floor available in isophthalic GRP and thermoplastic sections, designed to resist the media weight over the design life.

Spray Pipework

Fabricated thermoplastic pipework and nozzles designed to suit your flow requirements.

Features & Benefits
  • Proven design in accordance with BSEN 13280:2001
  • Any footprint in 500mm increments
  • Installed by PFG employed technicians
  • Fabricated thermoplastic pipe-work and nozzles
  • No horizontal internal tie bars
  • Panels provide FOS >6.0 against rupture
Case Study

2 No. 17 x 6 x 3.5m bespoke design Biofilter structures for odour control plant at waste water and sewage treatment site. [more]

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Parton Fibreglass Ltd
PFG House
Tame Valley Industrial Estate
Tamworth, Staffordshire,
B77 5DQ
United Kingdom

E-Mail (UK):
E-Mail (non UK):

+44 (0)1827 251899
+44 (0)1827 261390

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